Asbestos levels dropping, but worker exposure still too high, researchers say

摘要

Washington-Despite a downward trend in asbestos concentration levels over the course of nearly three decades, many workers in construction, automotive repair, manufacturing and other industries inhaled asbestos at heightened levels, according to a recent report. Researchers from scientific consulting firm Cardno ChemRisk analyzed data collected by OSHA between 1984 and 2011. They found that some air samples were 875 times higher than OSHA's limit for workplace exposure to asbestos fibers per cubic centimeter. The analysis was published in May in the journal Regulatory Toxicology and Pharmacology.